-ey c-- ccc cce cco ccp ccs cct ce- cec cee ceo cep ces cet cey co- coc coe coo cop cos cot coy cpc cpe cpo cpp cps cpt csc cse cso csp css cst csy ctc cte cto ctp cts ctt cty cyc cye cyo cyp cys cyt ec- ecc ece eco ecs ect eec eee eeo eep ees eet eey eo- eoc eoe eoo eop eos eot ep- epc epe epo epp eps ept es- esc ese eso esp ess est esy etc ete eto etp ets ett ety eyc eye eyo eyp eys eyt oc- occ oco ocp ocs oct oec oee oeo oep oes oet oey oo- ooc ooo oop oos oot op- opc ope opo opp ops opt opy os- osc ose oso osp oss ost ot- otc ote oto otp ots ott oye oyo oys p-p pcc pce pco pcp pcs pct pec pee peo pep pes pet pey poc poe poo pop pos pot poy ppc ppe ppo ppp pps ppt ps- psc pse pso psp pss pst psy pt- ptc pte pto ptp pts ptt pty py- pyc pye pyo pys pyt scc sce sco scp scs sct se- sec see seo sep ses set sey soc soe soo sop sos sot soy spc spe spo spp sps spt spy ss- ssc sse sso ssp sss sst stc ste sto stp sts stt sty sy- syc sye syp sys syt tcc tce tco tcp tcs tct te- tec tee teo tep tes tet tey to- toc toe too top tos tot toy tpc tpe tpo tpp tps tpt tsc tse tso tsp tss tst tsy ttc tte tto ttp tts ttt tty tyc tye tyo typ tys tyt ycc yce yco ycp ycs ycy yec yee yeo yep yes yet yey yoc yoe yoo yop yos yot yoy ypo yps ysc yse yso ysp yss yst ysy ytc yte yto ytp yts ytt yyc yye yys yyt yyy